Pyroelectric and dielectric properties of calcium barium niobate single crystals

The effect of the calcium concentration on the pyroelectric and dielectric properties of Ca$_x$Ba$_{1-x}$Nb$_2$O$_6$ (CBN) crystals has been studied over a wide temperature range. It has been shown that the calcium concentration only influences the Curie point of crystals of this class. It insignificantly changes the absolute values of the permittivity, the coercive field, and the remanent polarization and does not influence their temperature dependences and the shape of the dielectric hysteresis loop. The possibility of the existence of relaxor properties in CBN crystals has been discussed.